530123 has 4 divisors (see below), whose sum is σ = 578328. Its totient is φ = 481920.

The previous prime is 530093. The next prime is 530129. The reversal of 530123 is 321035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530123 - 2¹² = 526027 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530098 and 530107.

It is not an unprimeable number, because it can be changed into a prime (530129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24086 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (144582).

2⁵³⁰¹²³ is an apocalyptic number.

530123 is a deficient number, since it is larger than the sum of its proper divisors (48205).

530123 is a wasteful number, since it uses less digits than its factorization.

530123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48204.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 530123 is about 728.0954607742. The cubic root of 530123 is about 80.9329832306.

Adding to 530123 its reverse (321035), we get a palindrome (851158).

The spelling of 530123 in words is "five hundred thirty thousand, one hundred twenty-three".